You can only receive your rewards on one account.
In case you play ranked on multiple accounts using same PC, only one account will receive the prize (one with most logins during season live period).

Toribash staff may reset your rank and elo in case of rank farming suspicions.
Severe cases of rank farming may also result in your account's limited or permanent termination.

General Toribash Ranking Info:

Toribash Ranking is based on a seasonal system.
There are three seasons each year, each 3 months long, with a month's cooldown period in between seasons. Best players of each year's seasons will compete in Toribash World Championships for the title of the best player of the year.

Toribash Ranking has Elo decay system.
Your elo would start decaying by 2 points per day after a week of inactivity for Gold and Platinum Tier players and after 3 days of inactivity for Diamond Tier players.

To see your (and other players') ranking statistics, go to ranking page on forum. You can also access it from the left menu in Torishop under "Toribash" section.